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Performance issues with intensity graphs

Hello everyone,

 

Our application receives two 500x256 floating point matrices and they need to be displayed to the user in two IntensityGraphs with a mininum refresh rate of 5 Hz (if data is flowing faster, some frames can be discarded). But we were unable to achieve such performances even with a simple test application that generates a single random dataset  for display (eaxample application is attached to this message).

 

None or very few computation has to performed on data before display, but more vectors and points needs to be shown concurrently and all data plus another even bigger flow of data have to be saved on the hard disk, so we obviously need some reliability on the plotting performances. Is there any way to obtain better performances, or are we making some mistakes using the NI controls?

 

Any help is appreciated,

Paolo Bernini

 

Paolo Bernini
Avionics Lab.
System Analist
IDS Ingegneria Dei Sistemi S.p.A. www.idscorporation.com
Pisa Headquarters: Via Enrica Calabresi, 24 - Loc. Montacchiello 56121 Pisa (PI) - Italy
Tel: +39 050 3124 347 Mob: +39 3922951792 Fax: +39 050 3124 201
e-mail: p.bernini@idscorporation.com
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Dear Paolo,

 

unfortunately Intensity Graphs objects are not intended for frequent updates. There is no way to obtain better perfomances. You are using it in the right way.

 

Ragards,

 

A

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